Sequence contains more than one matching element : Key=4982a016-cc1e-43af-b98a-1f162c497e12;RelatedProductId=02d16ff3-0c02-4e0a-90f6-1673dc647736
Sequence contains more than one matching element : Key=4982a016-cc1e-43af-b98a-1f162c497e12;RelatedProductId=02d16ff3-0c02-4e0a-90f6-1673dc647736
at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
at Storefronts.PortalEngine.Data.Repositories.Product.ProductRelationshipRepository.Populate(PartnerId partnerId, DataSet dataSet) in c:\builds\pearsontechnology\gpt\stor\PortalEngine\InformIT.NET\Storefronts.PortalEngine.Data\Repositories\Product\ProductRelationshipRepository.cs:line 416